Cluster electric heating type low-temperature reboiler

Abstract

The invention discloses a clustered electric heating type low-temperature reboiler, and relates to the field of low-temperature liquid heating equipment, the clustered electric heating type low-temperature reboiler comprises a rectifying tower, a plurality of liquid storage cylinders and a plurality of electric heating wire fixing assemblies, the bottom of the rectifying tower is provided with the plurality of liquid storage cylinders, and the plurality of electric heating wire fixing assemblies are detachably connected to the liquid storage cylinders; specifically, the electric heating wire fixing assembly comprises an annular body defined by two semi-annular bodies, the opposite ends of the two semi-annular bodies are hinged together, the other opposite ends of the two semi-annular bodies are connected together in a clamped mode, the annular body is arranged on the first groove of the liquid storage cylinder in a sleeved mode, a cavity is formed in each semi-annular body, and an electric heating wire is arranged in each cavity in a penetrating mode. The reboiler is ingenious in conception and reasonable in layout, the electric heating element is convenient to disassemble and replace through improvement of the electric heating wire fixing assembly, normal and efficient work of the reboiler is guaranteed, and the problem that in the prior art, an electric heater is inconvenient to disassemble when fixedly connected is solved.

Description

Technical Field

[0001] The invention relates to the field of low-temperature liquid heating devices, and in particular to a clustered electric heating type low-temperature reboiler. Background Art

[0002] The existing reboiler is connected to the distillation tower body through multiple parallel cylinders, and adopts the form of heating the outer wall of the cylinder. It is safer and more reliable for heating flammable, explosive or corrosive liquids, and can also greatly extend the service life of the electric heater element. For the electric heater element on the outer wall of the cylinder, the heating load of each electric heating element can be adjusted by the control system, so that a specific temperature field distribution can be achieved in the axial space of the reboiler, achieving a more precise control purpose. However, the electric heater is fixed on the cylinder, which is inconvenient to disassemble. It is not easy to replace the electric heater after it is damaged, which affects the working efficiency of the reboiler.

[0003] Therefore, those skilled in the art are in urgent need of providing a clustered electrically heated low-temperature reboiler, in which the electric heating elements are easy to disassemble and replace to ensure the normal operation of the reboiler. Summary of the invention

[0004] The object of the present invention is to provide a clustered electric heating type low-temperature reboiler, wherein the electric heating element is convenient to disassemble and replace, thereby ensuring the normal operation of the reboiler.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] The present invention discloses a clustered electric heating type low-temperature reboiler, comprising a distillation tower, a liquid storage cylinder and an electric heating wire fixing assembly. A plurality of liquid storage cylinders are arranged at the bottom of the distillation tower, and a plurality of the electric heating wire fixing assemblies are detachably connected to the liquid storage cylinders.

[0007] Preferably, a plurality of grooves 1 are evenly arranged on the wall of the liquid storage cylinder, and the electric heating wire fixing assembly is sleeved on the grooves 1.

[0008] Preferably, the electric heating wire fixing assembly includes an annular body formed by two semi-annular bodies, the opposite ends of the two semi-annular bodies are hinged together, and the other opposite ends of the two semi-annular bodies are snap-connected together, the annular body is sleeved on a groove of the liquid storage cylinder, and a cavity is provided inside the semi-annular body, and an electric heating wire is passed through the cavity.

[0009] Preferably, hinges are installed on the outer side walls of the two semi-annular bodies at opposite ends, and the two semi-annular bodies are opened or closed around the rotation axis of the hinges.

[0010] Preferably, a fixing block 1 and a fixing block 2 are respectively fixedly connected to the outer side walls of the other opposite ends of the two semi-circular bodies, and the fixing block 1 and the fixing block 2 are fitted together. A positioning piece is fixedly connected on the fitting surface of the fixing block 1 and the fixing block 2, and a limiting groove is provided on the fixing block 2, and the position and size of the positioning piece and the limiting groove match.

[0011] Preferably, a spring and a limit block are provided on the positioning member, and grooves 2 are respectively provided on the opposite side walls of the positioning member, one end of the spring is fixedly connected in groove 2, and the other end of the spring is fixedly connected to the limit block; the limit block is moved by the spring and embedded in the limit groove of the fixed block 2, so that the fixed block 1 and the fixed block 2 are snap-connected together.

[0012] Preferably, the limiting groove is a T-shaped groove or a square groove, and the limiting block is provided with a chamfer.

[0013] Preferably, electric heating wire limiting assemblies are respectively provided at both ends of the semi-annular body, and the electric heating wire limiting assemblies include an axis and a roller, the two axis are relatively arranged at the ends of the semi-annular body, and the two ends of the axis are respectively fixedly connected to the upper and lower side walls of the semi-annular body, the roller is sleeved on the axis and is loosely matched with the axis, and the electric heating wire passes through the gap between the two rollers.

[0014] Preferably, wire holes are respectively opened on the outer side walls of the two semi-circular bodies, the wire holes are connected to the cavities of the semi-circular bodies, and the two wire holes are respectively located on both sides of the fixing block 1 and the fixing block 2.

[0015] Preferably, the inner annular wall of the semi-annular body is made of a heat-conducting material.

[0016] Compared with the prior art, the beneficial technical effects of the present invention are:

[0017] (1) The present invention provides a clustered electric heating type low-temperature reboiler, wherein the electric heating wire fixing assembly is hinged to facilitate opening and closing, and the electric heating wire is conveniently disassembled and replaced by a snap-fit ​​structure, which is easy to operate;

[0018] (2) When the electric heating wire fixing assembly of the present invention is opened, the electric heating wire moves and the roller can rotate around the axis, which can reduce the friction of the electric heating wire at the end of the semi-circular body and the wear of the electric heating wire at the end of the semi-circular body, thereby better exerting the heating function.

[0019] The invention has an ingenious concept and a reasonable layout. By improving the electric heating wire fixing assembly, the electric heating element can be conveniently disassembled and replaced, thereby ensuring the normal and efficient operation of the reboiler. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the structure of the electric heating wire fixing assembly of the present invention;

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of a clustered electric heating type low-temperature reboiler of the present invention;

[0023] Figure 3 It is a schematic diagram of the limiting component of the present invention;

[0024] Figure 4 It is a connection diagram of one embodiment of the fixing block 1 and the fixing block 2 of the present invention;

[0025] Figure 5 It is a connection diagram of another embodiment of the fixing block 1 and the fixing block 2 of the present invention.

[0026] Explanation of the reference numerals in the accompanying drawings: 1. Electric heating wire fixing assembly; 2. Semi-ring body; 3. Hinge; 4. Fixing block one; 5. Fixing block two; 6. Positioning piece; 7. Groove one; 8. Spring; 9. Limiting block; 10. Shaft; 11. Roller; 12. Wire hole; 13. Groove two; 14. Distillation tower; 15. Liquid storage cylinder. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0028] like Figure 1-5 As shown, a clustered electrically heated low-temperature reboiler comprises a distillation tower 14, a liquid storage cylinder 15 and an electric heating wire fixing assembly 1. A plurality of liquid storage cylinders 15 are arranged at the bottom of the distillation tower 14, and a plurality of the electric heating wire fixing assemblies 1 are detachably connected to the liquid storage cylinder 15.

[0029] Specifically, one of the multiple parallel cylinders is vertically connected to the distillation tower 14, and the rest are evenly distributed around the low-temperature distillation tower. The control system of the distillation tower 14 is electrically connected to and controls all the electric heating wire fixing components 1 installed on the outer wall of the cylinder. The control system adjusts and controls the operation of the electric heating wires in the electric heating fixing components through PLC or DCS.

[0030] A plurality of grooves 7 are evenly arranged on the wall of the liquid storage cylinder 15, and the electric heating wire fixing assembly 1 is mounted on the grooves 7. The grooves 1 can support the electric heating wire fixing assembly 1, and prevent the electric heating wire fixing assembly 1 from sliding down the liquid storage cylinder 15 to the bottom, so that each electric heating wire fixing assembly 1 is located at a different position of the liquid storage cylinder 15.

[0031] The electric heating wire fixing assembly includes an annular body surrounded by two semi-annular bodies 2, the opposite ends of the two semi-annular bodies 2 are hinged together, and the other opposite ends of the two semi-annular bodies 2 are snap-connected together, the annular body is sleeved on the groove 7 of the liquid storage cylinder 15, and a cavity is provided inside the semi-annular body 2, and an electric heating wire is passed through the cavity.

[0032] A hinge 3 is installed on the outer wall of the opposite end of the two semi-annular bodies 2, and the two semi-annular bodies 2 are opened or closed around the rotation axis of the hinge 3, so that the two semi-annular bodies 2 can be opened and closed by the hinge 3, which is convenient for disassembly of the two semi-annular bodies 2.

[0033] A fixing block 1 4 and a fixing block 2 5 are fixedly connected to the outer side walls of the other opposite ends of the two semi-circular bodies 2, respectively. The fixing block 1 4 and the fixing block 2 5 are fitted together, and a positioning member 6 is fixedly connected to the fitting surface of the fixing block 1 4 and the fixing block 2 5. A limiting groove is provided on the side wall of the fixing block 2 5, and the position and size of the positioning member 6 and the limiting groove match.

[0034] One embodiment is as follows: Figure 4 As shown, the positioning member 6 is provided with a spring 8 and a limit block 9, and the opposite side walls of the positioning member 6 are respectively provided with grooves 13, one end of the spring 8 is fixedly connected in the groove 13, and the other end of the spring 8 is fixedly connected to the limit block 9; the limit block 9 is moved by the spring 8 and embedded in the limit groove of the fixed block 5, so that the fixed block 1 4 and the fixed block 2 5 are snap-fitted and connected together. The limit groove is a T-shaped groove, and the limit block 9 is provided with a chamfer. When snapping, the limit block 9 is squeezed at the same time, and the limit block enters the T-shaped limit groove of the fixed block 2 5 and snaps together; when it needs to be disengaged, the fixed block 1 4 is directly pulled out of the fixed block 2 5, and the chamfer of the limit block facilitates disengagement from the T-shaped groove.

[0035] Another embodiment is as follows Figure 5As shown, the fixing block 2 5 is provided with a square limiting hole, the limiting hole squeezes the limiting block 9 of the positioning member 6, the spring 8 expands and contracts, after the limiting hole of the fixing block 2 5 passes through the limiting block 9 of the positioning member 6, the spring 8 is reset, the fixing block 2 5 and the fixing block 1 4 are limited and fit together, so that the two semi-circular bodies 2 are connected together; when the two semi-circular bodies 2 need to be separated, the limiting block 9 is pressed at the same time, the spring 8 expands and contracts, the limiting hole of the fixing block 2 5 is separated from the limiting block 9 of the positioning member, so that the two semi-circular bodies 2 are separated. After the engagement, a part of the limiting block 9 is located in the groove 2 13, and after the engagement, the limiting block 9 is limited by the wall of the groove 2 13, so that the engagement effect of the fixing block 1 4 and the fixing block 2 5 is better.

[0036] like Figure 3 As shown, the two ends of the semi-annular body 2 are respectively provided with electric heating wire limiting assemblies, and the electric heating wire limiting assemblies include a shaft 10 and a roller 11. The two shafts 10 are relatively arranged at the ends of the semi-annular body 2, and the two ends of the shaft 10 are respectively fixedly connected to the upper and lower side walls of the semi-annular body 2. The roller 11 is sleeved on the shaft 10 and has a clearance fit with the shaft 10, and the electric heating wire passes through the gap between the two rollers 11.

[0037] Specifically, the electric heating limit assembly is provided with four groups, which are respectively located at the ends of the two semi-circular bodies 2. The two ends of the shaft 10 are connected to the top wall and the bottom wall of the semi-circular body 2 by welding. When the two semi-circular bodies 2 are opened, the electric heating wire moves and the roller 11 can rotate around the shaft 10, which can reduce the friction of the electric heating wire at the end of the semi-circular body 2, reduce the wear of the electric heating wire at the end of the semi-circular body, and better exert the heating function.

[0038] The outer side walls of the two semi-circular bodies 2 are respectively provided with wire holes 12, the wire holes 12 are connected with the cavity of the semi-circular bodies 2, and the two wire holes 12 are respectively located on both sides of the fixing block 1 4 and the fixing block 2 5.

[0039] Specifically, the electric heating wire passes through one of the wire holes 12 into the cavity of the annular body, and passes through multiple circles, and finally passes through another wire hole 12. The electric heating wire is controlled by the control system to provide heat.

[0040] The inner annular wall of the semi-annular body 2 is made of heat-conducting material.

[0041] Specifically, the wall of the semi-circular body 2 is made of metal materials such as iron, copper or other materials, and the heat generated by the electric heating wire can be transferred to the liquid storage cylinder 15 to effectively heat the liquid inside the liquid storage cylinder 15.

[0042] The use process of the present invention is as follows:

[0043] First, the electric heating fixing assembly is connected according to the connection relationship so that the two semi-circular bodies 2 can be opened and closed along the hinge 3, and the fixing block 1 4 and the fixing block 2 5 are fixed on the outer walls of the two semi-circular bodies 2;

[0044] Secondly, the electric heating wire is inserted into the cavity of the annular body from one of the wire holes 12, and passes through between the two opposite rollers 11 and passes through multiple circles, and finally penetrates from the other wire hole 12;

[0045] Then, fix the electric heating fixing assembly on the groove 1 7 of the liquid storage cylinder 15. The groove 1 can support the electric heating wire fixing assembly 1 to prevent the electric heating wire fixing assembly 1 from sliding down the liquid storage cylinder 15 to the bottom; use the clamping structure of the fixing block 2 5 and the fixing block 4 together;

[0046] Finally, the control system is used to control the electric heating wire to generate heat, and the heat can be transferred to the inside of the liquid storage cylinder 15 through the heat-conducting annular wall to heat the liquid. After disassembling the electric heating fixing assembly, the annular body is removed from the groove 7 of the liquid storage cylinder 15 to facilitate the replacement of the electric heating wire.

[0047] Specifically, the number of heating wire fixing assemblies 1 on a single liquid storage cylinder 15 is assembled according to actual needs.

[0048] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0049] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A clustered electric heating low temperature reboiler, characterized in that: It comprises a distillation tower (14), a liquid storage cylinder (15) and an electric heating wire fixing assembly (1), wherein a plurality of liquid storage cylinders (15) are arranged at the bottom of the distillation tower (14), and a plurality of the electric heating wire fixing assemblies (1) are detachably connected to the liquid storage cylinders (15).

2. The clustered electric heating low-temperature reboiler according to claim 1, characterized in that: A plurality of grooves (7) are evenly arranged on the wall of the liquid storage cylinder (15), and the electric heating wire fixing assembly (1) is sleeved on the grooves (7).

3. The clustered electric heating low-temperature reboiler according to claim 2, characterized in that: The electric heating wire fixing assembly comprises an annular body formed by two semi-annular bodies (2), the opposite ends of the two semi-annular bodies (2) are hinged together, and the other opposite ends of the two semi-annular bodies (2) are snap-connected together, the annular body is sleeved on a groove (7) of the liquid storage cylinder (15), and a cavity is provided inside the semi-annular body (2), and an electric heating wire is passed through the cavity.

4. The clustered electric heating low-temperature reboiler according to claim 3, characterized in that: A hinge (3) is installed on the outer side wall of the opposite end of the two semi-annular bodies (2), and the two semi-annular bodies (2) are opened or closed around the rotation axis of the hinge (3).

5. The clustered electric heating low-temperature reboiler according to claim 3, characterized in that: A fixing block 1 (4) and a fixing block 2 (5) are fixedly connected to the outer side walls of the other opposite ends of the two semi-circular bodies (2), respectively. The fixing block 1 (4) and the fixing block 2 (5) are fitted together, and a positioning member (6) is fixedly connected to the fitting surface of the fixing block 1 (4) and the fixing block 2 (5). A limiting groove is provided on the fixing block 2 (5), and the position and size of the positioning member (6) and the limiting groove match.

6. The clustered electric heating low-temperature reboiler according to claim 5, characterized in that: The positioning member (6) is provided with a spring (8) and a limit block (9); the opposite side walls of the positioning member (6) are respectively provided with two grooves (13); one end of the spring (8) is fixedly connected in the two grooves (13); the other end of the spring (8) is fixedly connected to the limit block (9); the limit block (9) is moved by the spring (8) and embedded in the limit groove of the two fixing blocks (5), so that the one fixing block (4) and the two fixing blocks (5) are snap-fitted and connected together.

7. The clustered electric heating low-temperature reboiler according to claim 6, characterized in that: The limiting groove is a T-shaped groove, and the limiting block (9) is provided with a chamfer.

8. The clustered electric heating low-temperature reboiler according to claim 5, characterized in that: The two ends of the semi-annular body (2) are respectively provided with electric heating wire limiting assemblies, and the electric heating wire limiting assemblies include a shaft (10) and a roller (11). The two shafts (10) are relatively arranged at the ends of the semi-annular body (2), and the two ends of the shaft (10) are respectively fixedly connected to the upper and lower side walls of the semi-annular body (2). The roller (11) is sleeved on the shaft (10) and is loosely matched with the shaft (10), and the electric heating wire passes through the gap between the two rollers (11).

9. The clustered electric heating low-temperature reboiler according to claim 8, characterized in that: The outer walls of the two semi-circular bodies (2) are respectively provided with wire holes (12), the wire holes (12) are connected to the cavity of the semi-circular bodies (2), and the two wire holes (12) are respectively located on both sides of the fixing block 1 (4) and the fixing block 2 (5).

10. The clustered electric heating low-temperature reboiler according to claim 8, characterized in that: The inner annular wall of the semi-annular body (2) is made of a heat-conducting material.

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